Tapping-machine.



NVENTR M. J. FORD.

TAPPING MACHINE.

Patented Jan. 14, 1913.

APPLICATION IILED FBB.16, 1912.

w/r/vESsE till l@ shown in MARTIN J. FORD, F SCRANTON, PENNSYLVANIA..

onreine-limewire.

il @Miti/72% Speeiiieatten of Letters Patent.

I otenticd Jan. tgt, i913.

application inea February ie, iene. vserial no. fst/7,916.

To @ZZ 'te-fiom t meg] concern Be it known that-'L ll/tiizrm J. Fono, a citizen of the United States, and a residentof Scrantonu in the county of ltiaeliawanna and State of Pennsylvania, have invented a new and improved 'l'epping-llzlaehine, of hielt the following is a full, clear, and ee: el; description.

invention relates to improvement-s in tapping miichines, and hns for an object, to provide an improved structure wherein'a tap may he quickly forced in and. then quit-,lily forced out or unscrevved.

A. still further object of the invention is to Anrovide a housing and a plurality ot' multiplying mechanism arranged therein invinding a tap receiving socket, the same heing associated with power means whereby a tap tney he screwed or forced into an aperture for threading the seme at one speed, and may he forced out or unset-owed et a different. speed.

u )in carrying out;

the ohjeets of the inventioin housing of en v desired kind is provided in which in arranged plurality of interacting gear wheels, tivo of Which :wl:- zilternate v drive Wheels. To the gear wheel which. :iets continuously as a driven wheel is; eonneeted a top receiving socket .,erehy Whenever power is connected. to either el? sei( ivinfg gears' power will be commandite-d ith the tap receiving socket :ter can cono :ted therewith, the power means movings continuously in the same direction.

fit practical erohodiinent ot the invention re;.)reeented in the accompfmying drawi forming a part ot this specification, in which einiiiar characters ot ret'erence indicate eorrespmidiue parte in both the views.

Figure it is a viewv through For. 2, ap proximately on the line l--l; end Fig; 2 is a, 'vertical central transverse section through the device Shown in iig. l, a motor being connect/ion therewith.

Referring to the aceom'ianying drawings y numerals. l indicaties handle to which see'nred a housing; 2, formed with a troni; l ate 3 and :i haelt' plete Il. screwed or other vise rigidly secured together. Mounted in the housing' Q are a pair o1 driving gears 5 ti", and a driven gear 7. From Fig. 1 'it he observed that the l:gear Y is larger than the ,gear t?, and 4rear li in turn is larger than the gear The gear 7 has rigidly secured thereto a, hondleg which 'ects as a journal member. therefor. The handle 8 is formed with a sue-het 9 in which is positioned the tap receiving socket member l() which. aceoinmodat es a tap ll designed to be screwed into any desired material. The tep lt may he liorlucd beveled or. straight, as desired. The gear wheels and t are rig*- idly secured to journals l2 and .'13 rotatably mounted iu the front and hack plates 3 and 't. r.these journals are t'ormcd with squared ends 14 and l5 tor receiving a projection 16 formed with a. Socket designedy to co-act with the squared portions lat-*and l5. The projection ltl is au extension from the rotary portion ol the motor l'. The motor 'li' ma he of any desired kind, hut, prclierahly the saine is a rotary air motor which receives air from any sutfihlc source through a tube ttl and a hollow handle lil. 'l`he hollow handle lt) is designed to continuously resting against thc handle `8 tor preventing the rotation of the aising ot the motor 17.

ln small air motors the same are usually constructed so :is to continuously rotate in one direction in order to ohviate complicated mechanism for causing a reverse Inovement, and hy reason of this tact the motors may he used in screwing in to ps 1l, but cannot he used in withdrawing the same. The result is that the `taps may hev quickly screwed in for cutting' the threads but must he removed hy n wrench n'ianually. ily the provision ot' the driving or power wheels 5 and tl the tap may lic t'orced in or screwed in hy the motor 1T and again forced or screwed out. hy the motor t7. 'Vlhcu the mo tor t7 is iu the position shown in lfig. 2, the

`power is applied to the gear wheel 5 so thatA lowest speed and the tap the device is on 'its ll. is being screwed into place t'or cutting a thread. its ity requires less power to screw the top out, than it doeg to torce the same in, the projection 1G from the motor -17 ,is

moved over to the squared portion l5 and the motor startled in the saine direction. rlhis will cause a reverse movement of all et the gear wheel.l and consequently a reverse movement ot the tap il.. By this construction ind arrangement it will be 0hscrved that, .the motor driveS` the tap in at comparatively low speed so as toxert ample power thereon, hut removes the tap quickly at: e .conipzn'tivcly high speed., the motor continuously operating in the same direction. The handle l when in use is grasped by the operetor for holding the device in tif) place and steadying the same, the handle 8 preyenting any undesirable movement of the motor 17. Y.

Having thus described my invention I claim as new and desire to secure by Letters Patentfl. luna tapping machine of the class described,v a tap-receiving socket member, a gear Wheel rigidly connected with said socket member, a second gear Wheel in mesh with said first mentioned gear Wheel, connections whereby a motor may be attached to said seco-nd gear wheel for driving said socket member at agiven speed, a third gear wheel meshing with said second mentioned gear Wheel, and connections whereby a inotor may be attached extending from said third gear Wheel.

2. In a tapping machine of the class described, a tap-receiving socket, a handle for holding said socket, a gear vheel rigidly secured to said handle, a second gear wheel meshing with said 'first mentioned gear wheel, said second mentioned gear wheel being formed with an axle having a squared end, and a third gear wheel meshing `with said second mentioned gear-Wheel, said third gear Wheel being smaller than said seeond mentioned gear Wheel, said third mentioned gear wheel having an axle rigidly secured thereto provided with a squared end.

3. In a tapping machine, a housing formed of a pair of co-aeting platese means for securing said plates together, a handle rigidly secured to said plaies for supporting the same, a plurality or different sized gears meshing with each other, journaled in sont housing, a tap receiving socket rigidly noir nected with the largest gear wheel, and a driving journal member rigidly connected with each of the said remaining gear n'h'eelsz 4. In. a tapping machine oi" the class ne scribed, the combination with a power motor formed with a support-ing handle and I adapted to operate in one direction only, c? a pair of mtermeshing ygear wheels adaplml to be connected at diil'erent times to said power motor, a driven gear wheel inter imeshing with one of said lirsimentioned gear wheels, a handle rigidly secured io said driven gear Wheel acting as a journal therefor, said handle extending outward into the 'path of movement' of the handle ofi said i power motor for preventing a rotary moreinent of. the motor easing, and a lap receiving socket mounted' lunder said journal.

In testimony whereof l have signed my naine to'this specilication in the 'presence l of two subscribing witnesses. l i l Ivliirltrlll rl. FUND.

ii'i liresses l tino.. ill T iunior, Jr., l Judd. l` iris. 

